Denitration SCR catalyst supporting and hoisting device based on economizer grading transformation

Abstract

The invention discloses a denitration SCR catalyst supporting and hanging device based on economizer grading transformation. The denitration SCR catalyst supporting and hanging device comprises an economizer hanging plate, an upper-stage economizer, a lower-stage economizer, a catalyst supporting main beam and a plurality of catalyst supporting secondary beams. The upper end of the economizer hanging plate is connected with the upper-stage economizer; the lower end of the economizer hanging plate is connected with the lower-stage economizer; the catalyst supporting main beam is located betweenthe upper-stage economizer and the lower-stage economizer; the catalyst supporting main beam is connected with the middle of the economizer hanging plate; the catalyst supporting secondary beams arefixed to the catalyst supporting main beam; a catalyst module is fixed to the catalyst supporting secondary beams; and the catalyst supporting secondary beams and the economizer hanging plate are distributed in parallel. The device has the advantages of being simple in structure, small in construction difficulty, good in economical efficiency and capable of meeting the requirement for arrangementspace.

Description

technical field [0001] The invention belongs to the technical field of SNCR and SCR denitrification transformation, and relates to a denitrification SCR catalyst supporting and hanging device based on economizer graded transformation. Background technique [0002] To meet NO x Some coal-fired generating units adopt the SCR denitrification process. The process structure is: connect the outlet flue of the economizer to a set of independent denitrification reactor devices for NO removal x , the denitrification reactor device not only needs to be supported by an independent steel structure system, but also needs to expand enough space and invest a huge amount of transformation costs. Another part of the circulating fluidized bed boilers still cannot meet the latest emission requirements after adopting the combustion optimization adjustment + SNCR process, so the SCR device is added on the basis of this process. The system is: combustion optimization adjustment + SNCR + SCR pro...

AI Technical Summary

Problems solved by technology

The support structure is too complicated, the construction is difficult, the economy is poor, and the layout space requirements are difficult to achieve.

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